Goldfaber Aqua watercolour pencil
ultramarine
light ultramarine
blue violet
Albrecht Dürer Watercolour Marker
cobalt blue
helioblue reddish
light blue
Albrecht Dürer watercolour pencil
phthalo blue
skyblue
dark indigo
light phthalo blue
cobalt blue-greenish
middle phthalo blue
indanthrene blue
Prussian blue